diff --git a/Makefile b/Makefile
index d64f79ca22..8d61899b33 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ ifeq ($(PKG_TAG),)
 PKG_TAG := $(BUILDINFO_TAG)
 endif
 
-EXTRA_DOCKER_TAG_SUFFIX ?= EXTRA_DOCKER_TAG_SUFFIX
+EXTRA_DOCKER_TAG_SUFFIX ?=
 
 GO_BUILDINFO = -X '$(PKG_PREFIX)/lib/buildinfo.Version=$(APP_NAME)-$(DATEINFO_TAG)-$(BUILDINFO_TAG)'
 TAR_OWNERSHIP ?= --owner=1000 --group=1000